Lamp-socket.



Between the button 19 and the button 11 are arranged coil springs 34 and35 which may be engaged in position by seating them in appropriate wellsformed in adjacent laces of the buttons. These springs serve toconstantly force the button 19l outward. llhen a lamp is insertedhowever, its contacts bear upon the studs 17 and 18 and press the button19 inward toward the button 1l, thus compressing the springs 34, 35.`During this movement the spring contact forks 20 and 21 move upward onthe plates Q6 and Q7, in wiping contact therewith, thus insuringa goodelectrical connection from the wire terminals to the studs 17 and-1 8,4v,l

The casing as here shown comprises a cap 36 having a skirt 37 whichtclescopically sleeves over the upper end of the shell 38. These partsare provided with suitable latching means 39 and 40, to prevent endwiseseparation and relative rotation of the parts, after the fashion lof theGoodridge Patent No. 958,626. At its lower end the shell 38 is providedwith an inwardly projecting ledge 41. Resting upon this ,ledge is theoutwardly extending shoulder 42 of the lamp-supporting sleeve 48. Theouter end of the latter is recessed to afil'ord the. usual bayonet slotconnection 44 for the l'ateral studs on the lamp base (not shown). Thissleeve 43 is preferably provided with. on eX- terior threadedarea 45 onwhich works a milled ring 46 which serves to clamp the neck of a lampshade 47 against the bottom of the ledge 41 of the casing shell 38.

This ledge41 also supports the insulating socket body vwhich isshouldered at 48 for this purpose. are a pair of bays 49 and '50 intowhich take a pair of tongues 51 and 52 stamped inward from the sleeve43. Inasmuch asthe socket= body is held against rotation by theengagement of the stem of the switch key'33 with v its slot in thecasing shell 38, the sleeve 43 is held against rotation through' itsengagement with these bays 49 and 50 in the outer face of the button 11.Corresponding channels 53, 54, are formed in the floating button '19 topermit the latter to be passed into the sleeve 43 beyond the straps 51and 52.

It is obvious that the sliding connection between the parts 26 and 27and 20, 21, may he variously modified to obtain the same relativelydisplaceable electrical connection and that these parts themselves maybe modified in shape without departing from `the scope of my invention.The arrangement of the springs S4 and 35 may also be variously altered.1t is unnecessary of course to provide the threaded area 45 on thesleeve 43 if it is notf'desired to secure a`Z shade to the lamp, andvarious other shade@ supporting means may be provided without departingfrom what I claim as my invention.

Opening below this shoulder i I claim as my invention z- I 1. Anelectric lamp socket of the Edi- Swan type having an insulating body,wire terminalsethereon, a floating insulating button at thelamp-receiving end of the socket, lamp-engaging contacts thereon, springmeans tending to force said button outward, and sliding brush'means,allording constant electrical connection between said contacts and wireterminals, irrespective of the position of the floating button.

2. An electric lampv socket of the Edi- Swan type having an insulatingbody, wire terminals thereon, a floating insulating button at thelamp-receiving end 4of the socket, lamp-engaging contacts thereon,insulating spring means tending to force said button outward, andsliding brush means, affording constant electrical connection betweensaid contacts and wire terminals, irrespective of the position of theloating button.

3. An electric lamp socket of the Edi- Swan type having an insulatingbody, wire terminals thereon, a floating insulating -button at thelamp-receiving end of the socket, lamp-engagingcontacts thereon,

and slidably connected conductorsfor constantly electrically connectingsaid contacts and wire terminals. 4. An electric lamp socket of thelEdilSwan type having an insulating body, wire terminals thereon, afloating insulating button at the lamp-receiving end Aof the socket,1ampengaging contacts thereon, spring means tending to force said buttonoutward, and slidably connected conductors for constantly electricallyconnecting said contacts and wire terminals, together with stop meansassociated with said rconductors for limiting the outward 'displacementof the button by said spring means.

5. An electric lamp socket of the Edi- '.Swan type having an insulatingbody, wire terminals thereon, a floating insulating button at thelamp-receiving end of the socket, lampengaging contacts thereon, springmeans tending to orcevsaid button outward, and means for electricallyconnecting said contacts and wire terminals, said means comprising apair of spring forks and a 'pair of coperating blades, one pair beingelectrically connected to the wire terminals and' the other pair to thelamp-engaging con tacts.

6. An electric lamp socket of the Edi- Swan type having an insulatingbody, wire .-terminals thereon, a floating insulating but- .ton at thelamp-receiving end ol the socket, lampfengaging contacts thereon, springmeans tending to force said button outward, and means for electricallyconnecting said contacts and wire terminals, said means comprising apair of springF forks and a pair of cooperating blades, one pair beingelectrisaid spring forks .bemg slotted and the.

Hades having studs working in said sotS to limit the extent ofseparation of said insuating body and button.

In tesfilnon.;V whereof I have signed my I name to thisy speccation twosubscrlbmg Wltnesses.

Witnesses: l GILBERT W. GOODRIDGE,

H. M. WCHERT.

, in the presence of y .GEORGE B. THQMS. K

